CN103604750A - Infrared automobile exhaust detecting and alarming device - Google Patents
Infrared automobile exhaust detecting and alarming device Download PDFInfo
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- CN103604750A CN103604750A CN201310600768.8A CN201310600768A CN103604750A CN 103604750 A CN103604750 A CN 103604750A CN 201310600768 A CN201310600768 A CN 201310600768A CN 103604750 A CN103604750 A CN 103604750A
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Abstract
The invention discloses an infrared automobile exhaust detecting and alarming device comprising an infrared generator, an infrared sensor, a signal processing circuit, a controller and an alarming unit, which are connected with one another in sequence, wherein the infrared generator is mounted at an automobile exhaust emission opening and is used for generating infrared light which irradiates automobile exhaust; the infrared sensor receives the infrared light which irradiates the automobile exhaust, converts an infrared light signal into an electric signal and then sends the electric signal to the signal processing circuit; the signal processing circuit conditions the received electric signal and sends the conditioned electric signal to the controller; the controller controls the alarming unit to work according to the received electric signal. The infrared automobile exhaust detecting and alarming device is simple in structure, convenient to operate, low in production cost and easy to popularize.
Description
Technical field
The invention belongs to sensor detection field, particularly a kind of infrared automobile emission gas analyzer warning device.
Background technology
Along with the raising of people's living standard and the quickening of rhythm of life, the vehicle especially owning amount of private car sharply rises, and popularizing when the trip to people brings great convenience of automobile, has also brought pollution to environment.In recent years, a lot of cities of China are some big and medium-sized cities especially, and air pollution is serious, and haze sky is frequently existing, PM2.5 numerical value superelevation.These are all relevant greatly with the discharge of vehicle exhaust.
Although, a lot of automobile production producer recognized the impact of the many environment of vehicle exhaust, and developed the automobile of some low-carbon (LC)s, low emission, but along with the automobile increase of tenure of use, must there is damage more or less in automobile component, reduced the tail gas filtering ability that automobile has.
Traditional method for detecting automobile exhaust gas (for example: hydrogen flame ion detection method), the complex structure of device, operating difficulties, uses and inconvenience.
Summary of the invention
The technical matters existing in order to solve above-mentioned background technology, the present invention aim to provide a kind of simple in structure, easy to operate, with low cost, be easy to the infrared automobile emission gas analyzer warning device promoted,
In order to realize above-mentioned technical purpose, technical scheme of the present invention is:
A kind of infrared automobile emission gas analyzer warning device, it is characterized in that: this device comprises the infrared emittance connecting successively, infrared sensor, signal processing circuit, controller and alarm unit, described infrared emittance is arranged on motor vehicle exhaust emission mouth place, infrared emittance produces infrared light and irradiates vehicle exhaust, described infrared sensor receives the infrared light that irradiated vehicle exhaust, and after being converted to electric signal, infrared signal gives signal processing circuit, signal processing circuit is given controller after the electric signal receiving is nursed one's health, controller is controlled alarm unit work according to the electric signal receiving.
Wherein, above-mentioned signal processing circuit comprises filtering circuit and the amplifying circuit connecting successively, and the input end of described filtering circuit connects infrared sensor, and the output terminal of amplifying circuit connects controller.
Wherein, above-mentioned infrared sensor adopts IR1838 integral type infrared receiving terminal.
Wherein, this device also comprises display, and display is connected with controller, for the numerical value of display automobile tail gas harmful gas.
The beneficial effect that adopts technique scheme to bring is:
The present invention is simple in structure, and infrared sensor used, comparer, A/D converter etc. are all integration modules, and the technology of filtering circuit used, amplifying circuit is also quite ripe, therefore installs easy and simple to handlely, and reliability is also higher.Production cost is also cheaper, is beneficial to large-scale production and popularization.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present invention.
Embodiment
Below with reference to accompanying drawing, technical scheme of the present invention is elaborated.
System architecture diagram of the present invention as shown in Figure 1, a kind of infrared automobile emission gas analyzer warning device, this device comprises the infrared emittance connecting successively, infrared sensor, signal processing circuit, controller and alarm unit, described infrared emittance produces infrared light and irradiates vehicle exhaust, described infrared sensor receives the infrared light that irradiated vehicle exhaust, and after being converted to electric signal, infrared signal gives signal processing circuit, signal processing circuit is given controller after the electric signal receiving is nursed one's health, controller is controlled alarm unit work according to the electric signal receiving.
In the present embodiment, described signal processing circuit comprises filtering circuit and the amplifying circuit connecting successively, and the input end of described filtering circuit connects infrared sensor, and the output terminal of amplifying circuit connects controller.Described infrared sensor adopts IR1838 integral type infrared receiving terminal.This device also comprises display, and display is connected with controller, for the numerical value of display automobile tail gas harmful gas.
Principle of work of the present invention is:
The gases such as the CO in vehicle exhaust, HC, NO and CO2, all have respectively and can absorb the ultrared character of certain wavelength coverage.And, between the absorbed degree of infrared ray and exhaust concentration, there is certain relation.The present invention is just according to this principle, absorbed the variation of energy after certain wavelength coverage infrared ray, then by Lambert-Beer's law, detect the content of the harmful gas in exhaust by detecting infrared ray by vehicle exhaust.
The present invention utilizes the variation of the magnitude of voltage of the electric signal after infrared ray conversion to characterize infrared ray by vehicle exhaust, to be absorbed the variation of energy after certain wavelength coverage infrared ray, thereby draws the volume content of harmful gas in vehicle exhaust.First the vehicle exhaust that blowdown flow rate is met to national standard, after Infrared irradiation, receives and is converted to electric signal by infrared sensor, records the magnitude of voltage of this electric signal as the predetermined value of controller.
With infrared emittance, irradiate any vehicle exhaust to be measured, by IR1838 integral type infrared receiving terminal, received the infrared signal irradiating after tail gas, after being converted to electric signal, give filtering circuit, after filtering circuit filtering, give amplifying circuit, amplifying circuit is given controller after signal is amplified, when the signal voltage value receiving when controller is less than predetermined value, be that tail gas harmful gas content to be measured surpasses national standard, comparer output control signal, the power switch of controlling alarm unit is closed, and alarm unit is reported to the police.Controller can also be converted to digital signal by the electric signal receiving, then gives the numerical value that display shows harmful gas in tail gas.
Above embodiment only, for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought proposing according to the present invention, and any change of doing on technical scheme basis, within all falling into protection domain of the present invention.
Claims (4)
1. one kind infrared automobile emission gas analyzer warning device, it is characterized in that: this device comprises the infrared emittance connecting successively, infrared sensor, signal processing circuit, controller and alarm unit, described infrared emittance is arranged on motor vehicle exhaust emission mouth place, infrared emittance produces infrared light and irradiates vehicle exhaust, described infrared sensor receives the infrared light that irradiated vehicle exhaust, and after being converted to electric signal, infrared signal gives signal processing circuit, signal processing circuit is given controller after the electric signal receiving is nursed one's health, controller is controlled alarm unit work according to the electric signal receiving.
2. a kind of infrared automobile emission gas analyzer warning device according to claim 1, it is characterized in that: described signal processing circuit comprises filtering circuit and the amplifying circuit connecting successively, the input end of described filtering circuit connects infrared sensor, and the output terminal of amplifying circuit connects controller.
3. a kind of infrared automobile emission gas analyzer warning device according to claim 1, is characterized in that: described infrared sensor adopts IR1838 integral type infrared receiving terminal.
4. a kind of infrared automobile emission gas analyzer warning device according to claim 1, is characterized in that: this device also comprises display, and display is connected with controller, for the numerical value of display automobile tail gas harmful gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310600768.8A CN103604750A (en) | 2013-11-25 | 2013-11-25 | Infrared automobile exhaust detecting and alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310600768.8A CN103604750A (en) | 2013-11-25 | 2013-11-25 | Infrared automobile exhaust detecting and alarming device |
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| CN103604750A true CN103604750A (en) | 2014-02-26 |
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| CN201310600768.8A Withdrawn CN103604750A (en) | 2013-11-25 | 2013-11-25 | Infrared automobile exhaust detecting and alarming device |
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| CN (1) | CN103604750A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822389A (en) * | 2016-05-09 | 2016-08-03 | 黄安武 | Purifying method of carbon monoxide in automobile exhaust |
| CN105840284A (en) * | 2016-05-09 | 2016-08-10 | 黄安武 | Method and system for treating carbon monoxide in tail gas |
| CN105954475A (en) * | 2016-07-07 | 2016-09-21 | 孙祝兵 | Automobile exhaust detection device |
| CN106014555A (en) * | 2016-05-09 | 2016-10-12 | 黄安武 | Method for treating carbon monoxide in automobile compartment |
| CN106153566A (en) * | 2015-04-28 | 2016-11-23 | 上海艾梦电子科技有限公司 | A kind of automobile exhaust detection system |
| CN106744616A (en) * | 2016-11-28 | 2017-05-31 | 攀枝花市九鼎智远知识产权运营有限公司 | A kind of group refueling system |
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| CN202885863U (en) * | 2012-10-27 | 2013-04-17 | 长安大学 | Fuel engine tail gas parameter testing system |
| CN202900392U (en) * | 2012-10-30 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile exhaust emission device |
| CN103134766A (en) * | 2013-01-29 | 2013-06-05 | 哈尔滨丰非科技有限公司 | Automobile exhaust analysis system based on infrared spectral absorption method and disposing method thereof |
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319199A (en) * | 1990-12-26 | 1994-06-07 | Colorado Seminary | Apparatus for remote analysis of vehicle emissions |
| EP0681179A1 (en) * | 1994-05-05 | 1995-11-08 | Santa Barbara Research Center | IR-based nitric oxide sensor having water vapor compensation |
| CN2414413Y (en) * | 2000-01-27 | 2001-01-10 | 陈翔 | Infrared ray tail gas analysis quick resetting device for car |
| CN1412541A (en) * | 2001-10-08 | 2003-04-23 | 赵桂林 | Infrared laser detection system for real time detection of car tail gas and its method |
| CN201000425Y (en) * | 2007-02-01 | 2008-01-02 | 长沙福莱达机电科技有限公司 | Vehicle exhaust analysis measuring apparatus |
| CN102279165A (en) * | 2011-04-19 | 2011-12-14 | 珠海市中科信息技术开发有限公司 | Online tail gas monitoring system for motor vehicle |
| CN102608064A (en) * | 2012-04-10 | 2012-07-25 | 河南汉威电子股份有限公司 | Three-channel infrared gas sensor for CO gas high-precision detection |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153566A (en) * | 2015-04-28 | 2016-11-23 | 上海艾梦电子科技有限公司 | A kind of automobile exhaust detection system |
| CN105822389A (en) * | 2016-05-09 | 2016-08-03 | 黄安武 | Purifying method of carbon monoxide in automobile exhaust |
| CN105840284A (en) * | 2016-05-09 | 2016-08-10 | 黄安武 | Method and system for treating carbon monoxide in tail gas |
| CN106014555A (en) * | 2016-05-09 | 2016-10-12 | 黄安武 | Method for treating carbon monoxide in automobile compartment |
| CN105954475A (en) * | 2016-07-07 | 2016-09-21 | 孙祝兵 | Automobile exhaust detection device |
| CN106744616A (en) * | 2016-11-28 | 2017-05-31 | 攀枝花市九鼎智远知识产权运营有限公司 | A kind of group refueling system |
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Application publication date: 20140226 |